Odometer.



No. 845,820. PATENTED MAR. 5, 1907.

J. D. ROBERTS, ODOMETER.

APPLIUATION FILED MAY 22, 1906.

L 6 15 7! ,5 i 5 1a "if lifii h llSYLViil llA.

Application filed Ri ey 22, 19 06.

cificntion of iotters fiietenc. Patented March 5, 1997.

Serial lie. 318,161.

Tau/ll 10/1/0111 it Jim/y concern: v

136 it known that I, JOHN 1). R" "n'rs, a citizen of the United States, residing w; Oohniont, in the county oi. Allegheny and State of Pennsylvania, have invented certain new and useful improvements in Udoineters, oi

, which the following is 2 1- specification.

My invention relates to rr-gist "ring dc- Vicos, and particularly. to that known as odometers and similar devio for indicating revolutions either direetlg' or reduced to standards of measurement and fractions thereof.

T he principal object of in inrenlion to provide an instrument of ll 1 which will lre sinipleni'id positive in its action nnrl at the some time durable and compact in its construction.

Another object of my inven ion to produce on instrumentwhich will register scone rntcly, and this 1 nccoinphsn by positive locking of ell of the idle register-i lindo and by the provision in the l(."\'O--lilll for o reversal of direction oi the object to which the device may he ziltzn 'llmse two features respectively "lfilYtll t spinning or displacement ol the lcgislm -ovl rude-rs and reduction of the register by rue reversal ol the direction of the vehicle or oth r object to which the instrument may he nttanhed.

In the arcomp; lug drnnings, which form part of this specification, l igure l is a, plan View of an odometer embodying in)? invention. Fig. 2 is n vertical section i'ivn'cd from the lever-arm and ot the instrument and shows the fore part of tlr @2156 out sway. Fig. 3 is a longitudiinil setion of the rose in the direction of the sl m h ism in elevation. through the line i l or 1n enlarged detail ll group or re or cylinders and their intcrconnnu Fig. 6 2t View of one face of disks or cylinders, and l through the shaft and. sh

face of one of the said ri.

its adjacent collar 0 the pinion or star-wheel through. which in' renient is transmitted to the next cylinder intervals.

In the particular description of n invention I have for convenicmc shown as anplicd to an odometer, end l will so describe it, although I do not wish to conline myself to that embodiment,

Referring to the drmvingr, it case 1!. st-

tnched to a base 2 b suitable hws 3 and screws t, said base having openings 5 for attachment to the vehicle or other ObJQCu. A

shaft ('3, passing through the-henrings 7, extends into a sleeve 8, which is fixed in the side ol the case i. to h end in one direction only and held norstraight h :i sui tnble spring 11, is fixed to the pro} retina; end of the 6. Inside the on. nrlin 1Z2, lined on the shaft 6, has n pawl 13, hold by the spring 14, in engagement with the teeth of the ratchet-- Wheel l5, mounted on the side of the case l. A spiral normal position against the pin 1?,set in the side of the case L A. spring-pawl '18, attached to hose 12, engages ratchetheel l prevents lznclcwnrd n'iovenicnt of same.

the gen1'.\.l.00l 20, which is revmounted on the seeve 8 and is con gidly {O the adjoining register disk or lcr lul o pins or other convenient wuziy he made integral therewith. r disks or cylinders 21 21' 21 all identical in construction, 7 i may be made wi hout .fllilli'll i th on the lace adjacent to the they being superfluous in this one. iese register disks or cylinders revolulily mounted on the sleeve n n L p register-nuinernls.

tin-the inner face of each disk or cylinder is placed :1, single promoting tooth 24 Willi on indontnlion 25 on either side thereof, the rest n 1111101 taco being plein. Between the or c lindcrs ore )lnced colhirs 26 held on sleeve by set-screws 27 and hav ing .iho pinion or star-wheel 28 meshing with the teeth :52 on the one side and at lIltGlViLlS bein engaged by tl e single tooth 24 oi the niii 29 covered lo less or other A c i min; motel-nil, permits the registernuineruls on the ovlinders to be read in rota. tion, one line of ngures only being in View.

tlter 30 is nttziohed to the Wheel of the or other object to engage the lV8I'- in arm 9, jointed nt 10 spring is holds said arm 12 in its xco 'lho operation of my device is as follo'wsz.

Tie inslrurnent is conveniently attached to tl c vehicle or other OlJJBUl and at each revolution of the Wheel the striker engages the 

